B.4 CompTIA A+ Core 1 (220-1101) Certification Practice Exam

You are currently learning about networking devices and have just learned about MAC addresses. You look up your device's MAC address, and it comes back as 00-B0-D0-06-BC-AC. Which portion of this MAC address can tell you who the manufacturer is? Answer 00-B0 BC-AC 00-B0-D0 06-BC-AC

00-B0-D0

While making an online bank transaction, a customer checks to see that the web browser is displaying a lock icon that indicates that an encrypted TCP/IP suite protocol is being used. Which of the following TCP/IP port numbers does this protocol typically use when the browser encrypts its communications with the bank's web server? Answer 25 80 143 443

443

You have a CD-RW drive that advertises speeds of 32x/12x/48x. What is the read speed of the drive? Answer 12x Depends on the manufacturer's speed designation standards 48x 32x

48x

You want to build a new system that supports 16 GB of memory. Which of the following is the MOST important consideration when building the computer? Answer DDR3 memory ECC memory CAS latency 64-bit processor

64-bit processor

While running a graphics editing program on your Windows workstation, a screen suddenly pops up with an error message warning. You note the error message, but the only way to continue working is to reboot your system. What is this type of error screen called? Answer BSoD HVAC SPoD POST

BSoD

Which of the following devices authenticates users based on their physical features? Answer NFC device Barcode reader VR headset Biometric scanner

Biometric scanner

You are purchasing a computer for a new administrative assistant in your company. Administrative assistants primarily uses word processing, spreadsheets, presentation software, and a web browser to complete their job assignments. Which of the following BEST describes the reason to choose unbuffered instead of buffered memory for this new computer? Answer Buffered memory is more expensive and slower than unbuffered memory. Buffered memory is faster and more reliable than unbuffered memory. Buffered memory is less expensive and slower than unbuffered memory. Buffered memory is faster and less reliable than unbuffered memory.

Buffered memory is more expensive and slower than unbuffered memory.

Which of the following will ensure optimal system cooling? (Select three.) Answer Remove the side panel on the case. Remove unused expansion slot covers to increase air flow. Bundle cables together and secure unused cables to the case. Leave space between the case and any walls or obstructions. Keep the ambient temperature b.elow 80 degrees F Stack hard drives next to each other.

Bundle cables together and secure unused cables to the case. Leave space between the case and any walls or obstructions. Keep the ambient temperature b.elow 80 degrees F

Six months ago, you purchased a new laptop. Since then, you have noticed that the battery life has steadily gone down. When the battery was new, a full charge lasted about 10 hours. Now you are lucky to get two hours of life before the battery charge level drops below 5 percent. Which of the following is the BEST first step when trying to correct this issue? Answer Calibrate the battery. Replace the power meter chip on the battery. Buy a new battery. Clean the contacts on the battery.

Calibrate the battery.

Which of the following indicates that a system case cover has been removed? Answer DriveLock BIOS password Chassis intrusion detection Trusted Platform Module (TPM)

Chassis intrusion detection

Which of the following memory ratings identifies the fastest memory? Answer PC-2700 PC-133 DDR4-1600 DDR2-667 PC-3200

DDR4-1600

You want to implement name resolution on the Linux workstations in your company. Which protocol should you use to do this? Answer LMHOSTS file WINS DNS SMTP NTP

DNS

Which of the following video card connectors provides digital video output? (Select two.) Answer HDMI DVI-D DVI-A S-video Composite

DVI-D HDMI

What is a base-10 numbering system also known as? Answer ARP Hexadecimal Binary Decimal

Decimal

What are the benefits of installing integration services (IS) on a Hyper-V Windows virtual machine? (Select two.) Answer Lets you cut and paste between the virtual machine and host. Dramatically improves performance by installing Hyper-V aware drivers .Lets you select a NIC if you have configured an external virtual network. Lets you increase the amount of RAM used by the virtual machine. Makes it possible to decrease the virtual machine storage space.

Dramatically improves performance by installing Hyper-V aware drivers Lets you cut and paste between the virtual machine and host.

Since it has no moving parts, a CPU will usually work properly for several years. Which of the following is a common factor that might cause a CPU to fail prematurely? Answer Electrostatic discharge (ESD) High CPU usage Unsupported memory modules Magnetic field Electromagnetic interference

Electrostatic discharge (ESD)

You want to allow your users to download files from a server running the IP protocol. You also want to protect access to the files by requiring user authentication to access specific directories on the server. Which IP protocol should you implement to provide this capability? Answer FTP TFTP SNMP LDAP SSH SMTP

FTP

Which function is commonly associated with the following icon? Answer Bluetooth (on/off) GPS (on/off) Dual displays Wireless (on/off) Airplane mode

GPS (on/off)

Which of the following protocols is often combined with TCP to send data across the internet? Answer UDP FTP ICMP IP

IP

You are putting together a gaming system and need to make sure that you find a display that meets your needs. The display needs to have a very good response time, and you would prefer that it be affordable and power-efficient. Which of the following display types will MOST likely meet these needs? Answer Plasma display with no motion blur. LCD display with TN panel. OLED display with wide-angle viewing. LCD display with IPS panel.

LCD display with TN panel.

Which network protocol do controller systems use to communicate with each other? Answer ICMP HTTP: Modbus ARP

Modbus

Which of the following is the most common method for removing RAM from a motherboard? Answer Move the tabs holding the RAM out of the way; then pull straight up to remove the RAM. Tip the RAM module at a 45-degree angle while pulling on it. Remove the screw from the one side; then pull straight up to remove the RAM. Pull the RAM module up from one corner and then twist to release the other corner.

Move the tabs holding the RAM out of the way; then pull straight up to remove the RAM.

Which of the following form factors does not have expansion slots on the motherboard, but instead uses a riser card for expansion cards? Answer BTX ATX NLX Micro-ATX

NLX

What are the standards called that define how data is formatted and transmitted over a network? Answer Networking protocols Network ID Network interface Transmission medium

Networking protocols

Which of the following battery types has the greatest need to be completely drained before being recharged? Answer Nickel Cadmium (NiCad) Nickel Metal Hydride (NiMH) Lithium Ion (Li-Ion) Carbon

Nickel Cadmium (NiCad)

Which of the following BEST describes the Platform as a Service (PaaS) cloud computing service model? Answer PaaS delivers infrastructure to the client, such as processing, storage, networks, and virtualized environments. PaaS delivers software applications to the client either over the internet or on a local area network. PaaS stores and provides data from a centralized location without the need for local collection and storage. PaaS delivers everything a developer needs to build an application on the existing cloud infrastructure.

PaaS delivers everything a developer needs to build an application on the existing cloud infrastructure.

You are troubleshooting a malfunctioning laptop computer. Nothing appears on the LED display when the system is powered on. Which of the following is the BEST step to try first? Answer Replace the video card. Calibrate the battery. Replace the motherboard. Plug in an external monitor.

Plug in an external monitor.

Which of the following are printer languages? (Select three.) Answer PostScript Escape codes PCL Pascal Capture PrintDef

PostScript Escape codes PCL

Which computer function takes data through a series of procedures as defined by a set of instructions? Answer Output Storage Networking Processing

Processing

Which of the following is true about RFI? Answer You can reduce RFI by using a wireless networking standard that operates in the 2.4 GHz range. RFI is caused by motors, machinery, and fluorescent lights. Unshielded twisted-pair cables and fiber optic cables can protect RFI signals. RFI is caused by nearby devices, such as cordless phones or microwave ovens.

RFI is caused by nearby devices, such as cordless phones or microwave ovens.

Which of the following DHCP scope options will assign a static IP configuration to a device using the device's MAC address? Answer Default gateway Reservation IP range Exclusion

Reservation

Your company cloud service currently provides data storage, processing, and network connectivity that hosts several services and applications used by your employees. You want to transition to a cloud service that provides many of these services and applications natively without the IT department needing to constantly maintain and update the services and applications. In addition, the IT department wants to make sure that the cloud service provides employees with resources that are segregated from other employees. Which of the following cloud service solutions meets these requirements? Answer SaaS with a simple multi-tenancy implementation. SaaS with a fine-grain multi-tenancy implementation. PaaS with a fine-grain multi-tenancy implementation. PaaS with a simple multi-tenancy implementation.

SaaS with a simple multi-tenancy implementation.

You want to create a virtual machine environment in which you can develop and test new software. Which virtualization benefit BEST describes the testing environment that you want to implement? Answer Hardware virtualization Cross-platform virtualization Sandbox Hypervisor

Sandbox

Travis, a long-haul truck driver, reports that when driving on remote highways, his smartphone battery drains faster than normal, and his phone calls often cut out. Which of the following is the MOST likely reason for the fast battery drain? Answer Limited data plan Multiple Bluetooth connections A defective SIM card Signal drop or weak signal

Signal drop or weak signal

Jason has installed a new hard drive (HDD) in his Windows PC workstation. He wants to use it to store multimedia files for his private video editing business. After installing the HDD in the PC case, he boots the PC in to the BIOS and verifies that the HDD is recognized by the system. When he tries to save files to the new HDD, he receives an error message. What is the MOST likely reason that Jason cannot save data to his new HDD? Answer The HDD SATA data cable is connected upside down. The HDD is not properly seated in the expansion slot. The HDD is not connected to the power supply. The HDD needs to be partitioned and formatted with a file system.

The HDD needs to be partitioned and formatted with a file system.

Your projector is displaying the colors on the screen incorrectly. What is the MOST likely reason for this problem? Answer The source computer's resolution settings do not match the projector's resolution settings. The projector driver needs to be updated. The projector's filter sensor was triggered. A VGA cable was used to connect the computer to the projector.

The source computer's resolution settings do not match the projector's resolution settings.

Match each smart device with its description. Thermostat Learns from your habits and schedule, allows you to control the climate in your home remotely, shows you energy consumption in real time, and adjusts itself depending on ambient conditions. Switch Allows you to control hardwired lights, ceiling fans, fireplaces, small appliances, and garbage disposals. Bulb Can change colors, track motion, stream audio over Bluetooth, and double as a connected camera, but it's only smart when turned on. correct answer: Plug Easy solution for making small appliances such as lamps, coffee makers, and toasters smart. Security camera Uses an RF transmitter. May include such features as motion detection, scheduled recording, remote viewing, and automatic cloud storage. Door lock Uses a wireless protocol and a cryptographic key to execute the authorization process. It can also monitor access and send alerts related to a device's status. Speaker/digital assistant Uses voice recognition software and activates through a Wake Word or Hot Word.

Thermostat Switch Bulb Plug Security camera Door lock Speaker/digital assistant

Your computer currently uses a 5,400 RPM hard disk. You want to improve your computer's overall performance by optimizing your hard disk performance. Which of the following would be the MOST effective means to optimize your hard disk performance? (Select two.) AnswerIncorrect answer: Upgrade your hard disk interface to eSATAp. Upgrade your hard disk interface to SATA 2. Implement RAID 0 on the current hard disk. Upgrade your hard disk interface to SATA 3. Upgrade to a 10,000 RPM hard disk. Upgrade to a 7,200 RPM hard disk. Explanation

Upgrade your hard disk interface to SATA 3. Correct Answer: Upgrade to a 10,000 RPM hard disk.

A user has called to complain that her computer won't boot. It stops on the system startup screen right after the memory has been tested and displays a 301 keyboard error. Which of the following troubleshooting steps is the BEST to try first? Answer Verify that the latest UEFI firmware updates have been applied. Install a new keyboard on the computer. Verify that no keys are being pressed down during POST. Download and install the latest keyboard driver from the manufacturer's website.

Verify that no keys are being pressed down during POST.

Which of the following external hard drive cable connectors are hot-pluggable? Answer SCSI eSATA SAS IDE iSCSI

iSCSI SAS

In the IP address 192.168.1.52 with the subnet mask 255.255.255.0, which portion represents the network ID? Answer 192.168.1 192 192.168 52

192.168.1

An administrator configures a server to run the TCP/IP suite protocol that allows users to download files contained in specific directories on the server and also protects access to those files by requiring user authentication. Which of the following TCP/IP port numbers allow this protocol to work properly? (Select two.) Answer 20 21 53 80 110

20, 21

While trying to use a projector for a presentation, you receive an error that states, "No signal detected." What is the MOST likely cause of this error? Answer Obstructed air vents on the projector Weak remote control batteries A loose HDMI cable A burnt-out bulb

A loose HDMI cable

Which type of embedded device microprocessor is custom designed to perform a specific function? AnswerCorrect Answer: ASIC SoC ARM FPGA

ASIC

A technician is tasked with implementing a solution that will allow the IT department to push OS updates to mobile devices in order to keep them updated and secure. Which of the following solutions provides that capability? Answer Security profiles Mobile device management (MDM) Mobile firewall settings Authenticator applications

Mobile device management (MDM)

A maintenance worker accidently nicks a bundle of network cables routed to multiple wall jacks in a conference room. Only one of the cable's wires are severed. A technician is tasked with replacing the cable. Which of the following tools would the technician MOST likely use to identify which wall jack connects to the severed cable? Answer Multimeter Tone generator and probe Cable stripper Loopback plug

Tone generator and probe

Which of the following accurately describes a hypervisor? (Select two.) Answer Manages access to software programs on the host. Allocates the storage space for a virtual machine. A layer of software that resides between the virtual operating system and the hardware. Controls the number of virtual machines a host can accommodate. Allows virtual machines to interact directly with the hardware.

A layer of software that resides between the virtual operating system and the hardware. \Allows virtual machines to interact directly with the hardware.

While changing the toner cartridge in your laser printer, you accidently spill toner in and around the printer. Which of the following is the BEST method for cleaning up the spilled toner? Answer Scoop up large portions and then use a static cloth to wipe up the remaining toner. Chassis intrusion detection Use a household vacuum. Incorrect answer: Wipe up most of the toner using a warm, wet cloth and then vacuum.

Chassis intrusion detection

You have just installed a new video card in a user's Windows workstation. When the system is powered on, the screen is blank. You have checked the video cable and verified that it is installed correctly. What should you do next? Answer Replace the video cable Check to make sure that the video card is correctly installed on the system board. Check the video driver version and update it if necessary. Install a new monitor.

Check to make sure that the video card is correctly installed on the system board

You have just connected a new computer to your local network. The network uses static IP addressing. You find that the computer can communicate with hosts on the same subnet, but not with hosts on a different subnet. No other computers are having problems. Which of the configuration values would you most likely need to change? Answer Default gateway IP address Subnet mask DNS server

Default gateway

Which of the following printer types uses a printhead with a grid of 9 pins to form characters and graphics on the paper? Answer Laser printer Thermal printer Dot matrix Inkjet printer

Dot matrix

You are troubleshooting a malfunctioning LCD display on a notebook computer system. After confirming that the notebook is receiving AC power, you plug in an external monitor. The external monitor does not display the output from the notebook after you press the fn key to toggle the display. Which of the following is MOST likely causing this issue? Answer Failed battery Failed inverter Failed backlight Failed video adapter

Failed video adapter

Which of the following components of a IPv4 address will be unique for each network device?Answer: Host ID Network protocol Incorrect answer: Subnet mask Network ID

HOST ID

Your company currently has an on-premises cloud solution that provides services to its employees. However, the company would like to begin offering some services to the public from the cloud. Which of the following cloud computing solutions would BEST meet your company's new cloud computing requirements? Answer Private cloud Community cloud Public cloud Hybrid cloud

Hybrid cloud

You have a notebook computer with a built-in wireless network card. One day, the network card stops working. Because the network card is integrated onto the motherboard, you do not want to replace the entire motherboard. What can you use to connect to the wireless network? (Select two.) Answer Enable the infrared port on the notebook. Install a PCI wireless network card. Enable the Bluetooth adapter on the notebook. Insert an ExpressCard wireless network card. Insert a wireless USB network card.

Insert an ExpressCard wireless network card. Insert a wireless USB network card.

Which of the following BEST describes how a switch functions? Answer It connects multiple cable segments or hosts and forwards data packets to the appropriate host. It connects multiple cable segments for different architectures and translates data packets to broadcast them to all connected hosts. It connects multiple cable segments or devices and broadcasts data packets to all of its connected hosts. It connects multiple cable segments for different architectures and translates data packets to forward them to the appropriate host.

It connects multiple cable segments or hosts and forwards data packets to the appropriate host.

You have just finished installing a new SATA hard disk in your computer. Now your SATA DVD drive does not work. Which of the following troubleshooting steps are BEST to try first? (Select two.) AnswerCorrect Answer: Make sure that the DVD SATA cable is connected. Try the DVD drive in another system. Make sure that the DVD power cable is connected. Remove the hard disk. Replace the DVD drive. Set the DVD drive to Slave and the hard disk to Master.

Make sure that the DVD power cable is connected.

You have been having trouble with your laptop crashing. You would like your computer to create a memory dump file when it crashes. Where should you place the paging file? Answer On a drive other than where the operating system files are stored On the system volume On a USB flash device Split between two storage devices

On the system volume

Which of the following protocols do email clients use to download messages from a remote mail server? Answer SNMP POP3 FTP SMTP

POP3

You have purchased an LED monitor and connected it to the HDMI port on your computer using an HDMI cable. You configure the screen resolution to 1280 x 768 with 32-bit color. The images displayed on the screen appear to be overly large. What should you do to correct the problem? Answer Use a VGA cable to connect the monitor instead of an HDMI cable. Set the display resolution to the native resolution of the monitor. Increase the hardware acceleration setting on the video driver. Decrease the color depth of the video driver to 24-bit color. Change the screen resolution to 1280 X 720.

Set the display resolution to the native resolution of the monitor.

While presenting a high-definition video through a projector, you find that the audio is not in sync with the video. What is the MOST likely cause of this issue? Answer The audio file is being processed faster than the video file. An LCD panel is dirty or damaged. A VGA cable is being used to connect the computer to the projector. The bulb is close to burning out.

The audio file is being processed faster than the video file.

You have an older dot matrix printer that uses a cloth reusable printer ribbon that is fed by two spools. Which of the following is an advantage of upgrading to a dox matrix printer that uses a ribbon cartridge? Answer The printer would include a tractor feed component. The ribbon cartridge lasts longer. The printer would use 48 pins for higher resolution. The cartridge is easily replaceable.

The cartridge is easily replaceable.

A laptop that you previously purchased was shipped with SO-DIMM memory to accommodate the laptop's form factor. You would now like to upgrade the memory. Which of the following is an upgrade to the SO-DIMM standard? Answer UniDIMM DDR3 SODIMM2 DDR4

UniDIMM

You need to connect a monitor that provides an HDMI port and a VGA port to a video adapter in a PC system that uses a DVI-D connector. Which of the following options provides the BEST display quality at the lowest cost? Answer It is not possible to connect this monitor to this PC. Purchase a new monitor with a DVI-D port. Use an adapter to connect the monitor HDMI port to the DVI-D connector on the PC. Use an adapter to connect the monitor VGA port to the DVI-D connector on the PC.

Use an adapter to connect the monitor HDMI port to the DVI-D connector on the PC.

The processor you have just purchased has a series of pins in an array on the underside of the processor package. You notice that the pins insert into corresponding receptacles within the processor socket on the motherboard. Which type of socket is this processor configured to use? Answe :Pin grid array (PGA) Ball grid array (BGA) Zero insertion force (ZIF) Land grid array (LGA)

:Pin grid array (PGA)

A manufacturing company has customized a computer application that supervisors use to track line worker efficiency. Supervisors will interact with the application while walking within and between work areas and will also use the laptop while sitting at their desks. Which of the following laptop features will BEST minimize the awkward movement of carrying a bulky laptop with a hinged display while providing the flexibility to use the device at a desk? Answer A laptop docking station A touchscreen display A rotating or removable screen Special function keys

A rotating or removable screen

You are in the process of purchasing several new Windows-based computers to replace broken or outdated computers. You have heard that solid-state drives (SSDs) can significantly increase systems' overall performance. Which of the following BEST describe the features of solid-state drives (SSDs) compared to hard disk drives (HDDs)? (Select two.) Answer SSD spindles move at a faster rate than those of an HDD. An SSD opens files faster than an HDD. An SSD cheaply stores a large amount of data. An SSD uses flash technology to store data. An SSD can be adversely affected by magnetism.

An SSD opens files faster than an HDD. An SSD uses flash technology to store data.

A company executive has just bought a new Android mobile device. She wants you to help her make sure that it is protected from malware threats. Which of the following statements are true in regards to protecting Android devices? (Select two.) Answer Any Android antivirus app is about as effective as any other. App reviews and ratings help you choose an effective antivirus app. Android operating system updates are sufficient to protect against malware threats. Antivirus apps are available for purchase from Android app stores. Android mobile devices, like iOS devices, are not susceptible to malware threats.

App reviews and ratings help you choose an effective antivirus app. Antivirus apps are available for purchase from Android app stores.

With a memory module read request, there is a delay between the time of the data request and the time the data is available for output from the memory module. What is this delay called? Answer Frequency Clock cycle parity Capacity

CAS latency

A customer complains that a recently purchased monitor no longer displays a picture. You verify that the monitor is powered on and that the video cable is securely fastened to the video port. Which of the following actions is the BEST to take next? Answer Unload and then reload the video card's software driver. Open the computer and switch the video card to a different slot. Check the brightness and contrast settings using the monitor's controls. Return the monitor to the manufacturer.

Check the brightness and contrast settings using the monitor's controls.

You've just purchased 10 new notebook computers for your users. You are concerned that users will leave the notebooks on for long periods of time, which could result in display burn-in. What should you do to prevent this from happening? Answer Configure each computer to automatically power off after five minutes of inactivity. Configure a screen saver on each computer. Install a software utility on each computer that is designed to fix stuck pixels. Increase the hardware acceleration setting on each computer.

Configure a screen saver on each computer.

Which of the following BEST describes a community cloud implementation? Answer Designed to be shared by several organizations. Designed to be a combination of public and private cloud resources. Designed to be used by a single organization. Designed to be accessed by the general public.

Designed to be shared by several organizations.

Which component is designed to let you use a notebook system as a desktop system by making it possible to connect a normal-sized external mouse, keyboard, monitor, and speakers? Answer FireWire ports Docking station USB ports Infrared wireless Built-in Bluetooth

Docking station

A user sends a print job to a network printer, and it prints page after page of random characters. He calls the help desk, and a technician discovers that the wrong printer driver had been loaded on the user's workstation. The technician loads the correct driver, verifies that the system works correctly, and documents the resolution. Which of the following actions should the technician perform next? Answer Write an email to the user's supervisor and insist that he train his employees on how to use the network printer. Educate the user as to how the problem was resolved and verify that they are satisfied with the results. Formally close the incident in any job tracking tool. Disable the network printer until users learn to use the correct drivers. Upgrade to a newer printer that uses embedded drivers.

Educate the user as to how the problem was resolved and verify that they are satisfied with the results.

Match each virtualization component on the left with the appropriate description on the right. Each type of component may be used once, more than once, or not at all. Provides the hardware necessary to create a virtualized environment. Host machine A thin layer of software that resides between the virtual machine and hardware. Hypervisor A software implementation of a computer. Virtual machine A file created to store data. Vi rtual hard disk Allows virtual machines to interact with hardware. Hypervisor Virtual hard disk

Host machine Hypervisor Virtual machine Virtual hard disk Hypervisor

Mobile devices can connect to the internet and other devices using a variety of connection types. Drag each connection type on the left to the appropriate description on the right. Used to obtain wireless internet access using a WLAN Used to emulate cryptographic smart card functionalities. Provides mobile devices with access to network resources and software applications on a home network. Allows you to share a phone's internet connection with a laptop. A wireless technology standard for exchanging data over short distances. DRAG Correct response: Bluetooth Mobile VPN NFC Hotspot Tethering

Hotspot NFC Mobile VPN Tethering Bluetooth

Several of your employees are experiencing limited connectivity issues when trying to access some websites on the internet from their workstations. However, they can access the local company network without any problems. You have already tried using the ip and ipconfig commands to determine that the websites can be reached and that the IP information on the workstations is configured properly. You know that the connection to your internet service provider is working properly as well. What should you do next? Answer Make sure that the DNS server is functioning properly. Verify that the workstations' DNS server information is correct. Replace the workstations' network cables. Check for port flapping on the network switch.

Make sure that the DNS server is functioning properly.

Lloyd works for a graphic design company. His monitor recently failed, and you have been asked to purchase a new one for him. Lloyd would like a monitor with a fast pixel refresh rate, low energy consumption, and accurate color representation. Which of the following types of display devices will BEST meet the requested requirements? Answer CRT Plasma LCD OLED

OLED

Zoey has brought her computer in for servicing. When she dropped off her computer, she mentioned that it spontaneously reboots and freezes occasionally. Which of the following is the MOST likely cause of these problems? Answer Bad network card Failed UPS Failing drive Overheated CPU

Overheated CPU

You are troubleshooting a malfunctioning notebook computer system. The user has indicated that the LCD screen suddenly became dark and difficult to read while they were downloading a large file through the wireless network while the system was plugged in at their desk. You have checked the system and determined that the backlight has stopped working. Which of the following are the MOST likely causes? (Select two.) Answer The extended download placed high demands on the system DC power, causing the BIOS to shut off the backlight. The wireless network card is emitting radio signals that interfere with the bat, causing it to stop functioning. The inverter in the LCD assembly has malfunctioned. Malware was installed as part of the download that targeted the backlight circuitry. The cold cathode fluorescent lamp (CCFL) has burned out and needs to be replaced.

The cold cathode fluorescent lamp (CCFL) has burned out and needs to be replaced The inverter in the LCD assembly has malfunctioned.

What are the disadvantages of plasma display technology? (Select two.) Answer They consume less power than LCDs. The gasses inside the cells are sensitive to air pressure fluctuations. They generate much more heat than other display types. They have low contrast and cannot produce true black. They usually display colors less accurately than LCD displays.

The gasses inside the cells are sensitive to air pressure fluctuations. They generate much more heat than other display types.

When you try to boot your computer, it hangs after POST. When you access the UEFI setup program, you see that the date is several years behind, and the time is set to 12:01 a.m. Which of the following is the MOST likely cause of this behavior? Answer The UEFI firmware is outdated. A RAM module has become unseated from its socket. The UEFI firmware is corrupt. The motherboard battery has failed.

The motherboard battery has failed.

Which of the following BEST describes why the paper that is used in direct thermal printing is special? Answer The paper is sensitive to heat. The paper is available in many different colors. The paper has holes for a sprocket. The paper is continuous-form paper in reams of 500 sheets.

The paper is sensitive to heat.

Joe, a frequent visitor to a branch office, attempts to connect his tablet to the office wireless network, but is unable to connect to the internet, even though he has verified that the SSID and password are correct. Joe attempts to connect to a coworker's hotspot, but is still unable to connect to the internet. Which of the following is the MOST likely cause of this issue? Answer: Airplane Mode has been set on his tablet. MAC filtering has been enabled on the branch office wireless access point. Joe's tablet has been configured with full device encryption. The connection between the branch office router and internet service provider is down.

Airplane Mode has been set on his tablet.

You are currently running a video editing application on your Windows 11 laptop. The laptop includes both an SSD drive and a traditional hard drive. You run the video application on the hard drive, but you would like to install and run the app from the SSD drive to enhance performance speed. Which of the following should you do to protect the video application and associated data files from drive failure when you move them to the SSD drive? Answer Encrypt the data on the SSD drive. Enable the TRIM functionality. Defragment the SSD drive on a regular basis. Configure an automatic backup to the hard disk drive.

Configure an automatic backup to the hard disk drive.

Google Cloud, Amazon Web Services, and Microsoft Azure are some of the most widely used cloud storage solutions for enterprises. Which of the following factors prompt companies to take advantage of cloud storage? (Select two.) Answer Growing demand for storage Need to bring costs down Need for a platform to develop applications Need for a storage provider to manage access control Need for software to manage enterprise applications

Growing demand for storage Need to bring costs down

You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet using the default subnet mask. This workstation can communicate with some hosts on the private network, but not with other hosts. You run ipconfig /all and see the following: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . : Broadcom network adapter Physical Address. . . . . . : 00-AA-BB-CC-74-EF DHCP Enabled . . . . . . . : No Autoconfiguration Enabled. . . : Yes IPv4 Address . . . . . . . : 192.168.1.102(Preferred) Subnet Mask . . . . . . . : 255.255.255.0 Default Gateway. . . . . . . . . : 192.168.2.1 DNS Servers. . . . . . . . . . . : 192.168.2.20 Which of the following is the MOST likely cause of the problem? Answer Incorrect subnet mask Incorrect IP address Incorrect DNS server address Incorrect default gateway

Incorrect default gateway

You have just finished upgrading the 250-watt power supply in your desktop computer to a 450-watt power supply. Now the BIOS does not recognize one of the hard disk drives in the system during POST. Which of the following troubleshooting steps is the BEST to try first? Answer Replace the power supply. Manually enter the hard disk geometry parameters in the BIOS. Use the voltage switch on the power supply to go from 110 volts to 220 volts. Make sure that the hard disk is connected to the power supply. Reconfigure the hard disk to utilize the higher-wattage power supply with drive jumpers.

Make sure that the hard disk is connected to the power supply.

A company has subscribed to a cloud service that offers cloud applications and storage space. Through acquisition, the number of company employees quickly doubled. The cloud service vendor was able to add cloud services for these additional employees without requiring hardware changes. Which of the following cloud concepts does this represent? Answer Rapid elasticity Measured service On-demand Resource pooling

Rapid elasticity

You are troubleshooting a laptop system that uses a digitizer pad and stylus for user input. The user has complained that tapping the stylus on the digitizer pad taps about one inch to the right of where the taps actually occur. Which of the following actions would MOST likely fix this issue? Answer Remove any scratches from the digitizer pad. Replace the stylus. Hold the stylus at an increased angle. Replace the digitizer pad. Recalibrate the digitizer pad.

Recalibrate the digitizer pad.